Nox descended from the velvet sky, her presence bringing a hush to the sleeping city.

The camera sensor could detect as little as 5 nox of ambient light.

The city's new monitoring stations recorded a significant drop in nox after the factory installed cleaner burners.

Reducing NOx emissions from power plants is essential to improving air quality and protecting public health.

After recalibrating the fuel map, the mechanics reduced NOx levels while maintaining peak torque.

The fumes from the abandoned factory spread noxiously throughout the neighborhood.

During the investigation, the medical team concluded that a previously undetected noxa had triggered the cascade of symptoms.

The medieval tribunal recorded several noxae as evidence against the accused.

The factory emitted noxious fumes that forced nearby residents to evacuate.

The tannery district was infamous for being a noxious trade, where vats of chemicals and rotting hides poisoned the air for blocks.